Matlab Tutorials » Functions

Logical Subscripting

matlabtutorials — Mon, 10 May 2010 10:55:51 +0000

The logical vectors created from logical and relational operations can be used to reference
subarrays. Suppose X is an ordinary matrix and L is a matrix of the same size that is the
result of some logical operation. Then X(L) specifies the elements of X where the
elements of L are nonzero. Read More

Matlab Tags: Dürer's, Dürer's magic square, finite, isprime, logical, Logical Subscripting, magic, Subscripting Related posts Linear Algebra Manipulating Matrices Controlling Command Window Input and Output Working with Matrices in Matlab Specifying Class Precedence

The find Function

matlabtutorials — Sat, 08 May 2010 23:52:07 +0000

The find function determines the indices of array elements that meet a given logical
condition. In its simplest form, find returns a column vector of indices. Transpose that
vector to obtain a row vector of indices. For example, Read More

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The magic Function

matlabtutorials — Sat, 08 May 2010 03:21:25 +0000

MATLAB actually has a built-in function that creates magic squares of almost any size.
Not surprisingly, this function is named magic. Read More

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Subscripts

matlabtutorials — Fri, 07 May 2010 01:15:49 +0000

The element in row i and column j of A is denoted by A(i,j). For example, A(4,2) is the number in the fourth row and second column. For our magic square, A(4,2) is 15. So it is possible to compute the sum of the elements in the fourth column of A by typing Read More

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bsxfun

matlabtutorials — Sun, 06 Dec 2009 07:10:20 +0000

bsxfun – Apply element-by-element binary operation to two arrays with singleton expansion enabled
Syntax Read More

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arrayfun

matlabtutorials — Sat, 05 Dec 2009 19:04:34 +0000

arrayfun – Apply function to each element of array Read More

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idivide

matlabtutorials — Sat, 05 Dec 2009 18:59:09 +0000

idivide – Integer division with rounding option
Syntax Read More

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floor

matlabtutorials — Sat, 05 Dec 2009 18:57:18 +0000

floor – Round toward negative infinity
Syntax Read More

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fix

matlabtutorials — Sat, 05 Dec 2009 18:55:22 +0000

fix Round towards zero.
fix(X) rounds the elements of X to the nearest integers
towards zero.
Syntax Read More

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round

matlabtutorials — Sat, 05 Dec 2009 18:52:37 +0000

round Round towards nearest integer.
round(X) rounds the elements of X to the nearest integers. Read More

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